Determination of α lamellae orientation in a ß-Ti alloy using electron backscatter diffraction.
J Appl Crystallogr
; 57(Pt 4): 1001-1010, 2024 Aug 01.
Article
in En
| MEDLINE
| ID: mdl-39108819
ABSTRACT
The spatial orientation of α lamellae in a metastable ß-Ti matrix of Timetal LCB (Ti-6.8â
Mo-4.5â
Fe-1.5â
Al in wt%) was examined and the orientation of the hexagonal close-packed α lattice in the α lamella was determined. For this purpose, a combination of methods of small-angle X-ray scattering, scanning electron microscopy and electron backscatter diffraction was used. The habit planes of α laths are close to {111}ß, which corresponds to (1320)α in the hexagonal coordinate system of the α phase. The longest α lamella direction lies approximately along one of the ã110ãß directions which are parallel to the specific habit plane. Taking into account the average lattice parameters of the ß and α phases in aged conditions in Timetal LCB, it was possible to index all main axes and faces of an α lath not only in the cubic coordinate system of the parent ß phase but also in the hexagonal system of the α phase.
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01-internacional
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MEDLINE
Language:
En
Journal:
J Appl Crystallogr
Year:
2024
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Article
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